Khloe Kardashian -- Breaks Up With French Montana ... I'm Not Over Lamar

Khloe Kardashian has called it quits with rapper French Montana ... because she still hasn't fully recovered from her disastrous breakup with Lamar Odom.

Sources close to Khloe tell us ... she ended the relationship, telling French she can't emotionally handle it.

Khloe filed for divorce from Lamar back in December after the former NBA star's long battle with cocaine ... then started dating French in April.

We're told Khloe felt she and French had gone way too far, too fast. He bought her a Jeep for her birthday.

She and French still get along and will hang out here and there ... but that's about it.